117311015 has 4 divisors (see below), whose sum is σ = 140773224. Its totient is φ = 93848808.

The previous prime is 117310967. The next prime is 117311021. The reversal of 117311015 is 510113711.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 117311015 - 2⁶ = 117310951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11731097 + ... + 11731106.

It is an arithmetic number, because the mean of its divisors is an integer number (35193306).

Almost surely, 2^117311015 is an apocalyptic number.

117311015 is a deficient number, since it is larger than the sum of its proper divisors (23462209).

117311015 is an equidigital number, since it uses as much as digits as its factorization.

117311015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23462208.

The product of its (nonzero) digits is 105, while the sum is 20.

The square root of 117311015 is about 10831.0209583400. The cubic root of 117311015 is about 489.5303218453.

Adding to 117311015 its reverse (510113711), we get a palindrome (627424726).

The spelling of 117311015 in words is "one hundred seventeen million, three hundred eleven thousand, fifteen".